State size comparison
compared to
South Dakota is around the same size as Washington.
Washington is approximately 172,348 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 14% larger than Washington. Meanwhile, the population of Washington is ~6.7 million people (5.9 million fewer people live in South Dakota).
Tip:
This to-scale comparison of
Washington
vs.
South Dakota
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Compare further: South Dakota vs. Washington
Flip Comparison · See true size
See South Dakota on top of Washington
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Quality of Life Comparison · 17 statistics
Be 2.2 times more likely to be unemployed in Washington
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Cost of Living Comparison · 7 categories - 2026 data
Washington is 45.2% more expensive than South Dakota
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City Size Comparison · See true size
Compare the size of New York City vs Seattle
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